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JavaScript Coding Problem Problem

clickers331

clickers331

New Coder
Screenshot_98.png

This is the problem I am trying to solve.
JavaScript: 
export const translate = (RNA) => {
        let database = {
          Methionine : ["AUG"],
          Phenylalanine : ["UUU", "UUC"],
          Leucine : ["UUA", "UUG"],
          Serine : ["UCU", "UCC", "UCA", "UCG"],
          Tyrosine : ["UAU", "UAC"],
          Cysteine : ["UGU", "UGC"],
          Tryptophan : ["UGG"],
          STOP : ["UAA", "UAG", "UGA"]
      }
      if (RNA === undefined){
          return [];
      }
      let rnaArr = RNA.split('');
      let colons = [];
      let sequence = [];
      let proteins = [];
      for (let i = 0; i < rnaArr.length; i++){   
          sequence.push(rnaArr[i]);   
          if((i + 1) % 3 === 0){       
              colons.push(sequence.join(''));
              sequence = [];
          }
      }
      if (colons.includes(...database.Methionine)){
          proteins.push("Methionine") 
      } if (colons.includes(...database.Phenylalanine)){
          proteins.push("Phenylalanine") 
      } if (colons.includes(...database.Leucine)){
          proteins.push("Leucine") 
      } if (colons.includes(...database.Serine)){
          proteins.push("Serine") 
      } if (colons.includes(...database.Tyrosine )){
          proteins.push("Tyrosine") 
      } if (colons.includes(...database.Tryptophan)){
          proteins.push("Tryptophan") 
      } if (colons.includes(...database.STOP)){
          proteins.push("STOP") 
      } if (proteins === []){
          return "Invalid colon.";
      }

      return proteins;
 
};


I wasn't able to solve it so if I could get any kind of help, it would be much appreciated.
 
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